One thing I like Linux is about "command line", and the other is the terminal-based system monitoring tools.
Other the the standard "top" utility that helps to display al the running processes and gives some important information on the performance of the system.
Here are a list of "top" alternatives.
- htop - http://hisham.hm/htop/
- atop - https://www.atoptool.nl/index.php
- nmon - http://nmon.sourceforge.net/pmwiki.php?n=Main.HomePage
- vtop - https://github.com/MrRio/vtop
- bashtop - https://github.com/aristocratos/bashtop#installation
- gtop - https://github.com/aksakalli/gtop
- glance - https://nicolargo.github.io/glances/